In this episode, Mr. Krabs creates a "promotion" to the Krusty Krab by selling Regular, Large and Viking Sized Drinks (Which are all the same size) in a bid to save the restaurant money yet to fool the customers. He also states whoever purchases a Viking Sized cup tries on a cardboard helmet (that he found in his attic). This gets SpongeBob interested in Vikings. Squidward then teaches him about Vikings, though it's all lies. Then SpongeBob sends a letter to the Vikings, then a garbageman (who is a Viking) delivers the letter to the Viking Chief. He then sends his men to the Krusty Krab to teach them about the Vikings (which is redecorating, appropriating, and liberating) and they kidnap SpongeBob and Squidward. Then the they introduce themselves as Gordan and a bunch of Olafs. SpongeBob then asks what they do for fun (which is just throwing a shield), then one says they like to sing songs, and then he's thrown off the boat. Then, they make SpongeBob their new head chef and, after a speech, they make Squidward their bathroom attendant.
This one of the few non-special episodes with a DVD based off it.
SpongeBob should already know about Vikings because in the episode Bubble Buddy he celebrates Leif Eriksson Day, indicating SpongeBob did not know who Leif Eriksson is.
When you watch this episode in German, all the Vikings are called Olaf except Gordon, who is called Gunther in the German episode version.
This episode is available on iTunes store before or when this episode aired, and is paired with Ditchin' for just $1.99 the pair.
When Squidward talks about the helmet, there is cobwebs but later there is no cobwebs.
During the part where SpongeBob says, "I'll let you know if I think of anything.", his nose looks like Squidward's. Then when the camera switches, then switches back to SpongeBob, his nose is normal again.
Hurry - SpongeBob's letter gets transferred to the Bikini Bottom Post Office.
Roman Empire - The Viking Garbageman travels up the mountains to the Viking's lair.
Celtic Lands - #1: "Ah, Helga, tell me once again of the time you visited those remote Himalayan Hot Springs."
Big Bad Giant - #1: The Viking Garbageman approaches the King Viking.
Comic Walk - "Hold it right there, whiskers! Let's not forget you're the one who drag me onto this crate in the first place! Now, you ask me to pour my heart out and this is the respect I get!? Well, you've got another thing coming, honey. I want off this boat, pronto!"